NJU3712M

NJU3712M Application Field and Working Principle

NJU3712M is a low-power universal transceiver IC used for serial data transmission. It is mainly used in communication areas such as UART, SPI, I2C and so on. It is especially suitable for mid-to-low speed applications. It includes 4-channel fully independently configured digital isolator, ultra-low power RS-485/422 transceiver, and two-wire (I2C/SMbus) fully isolated digital isolator.thanks to its working principle and design, NJU3712M has wide range of applications in industrial, automotive and health-care industries. It has EMI/EMC design and is used in data communication systems.

Features of NJU3712M

• Low power dissipation
• Low EMI / EMC
• 4-channel Digital Isolator
• Ultra-low power RS-485/422 transceiver
• 2-wire (I2C/SMbus) fully isolated Digital Isolator

Working Principle of NJU3712M

NJU3712M is based on Ethernet IEEE 802.3u\'s Digital Data Interchange Interface (DDI). The main component in NJU3712M is a digital isolator, which works by separating the data link layer signals from the physical layer signals. The digital isolator converts the input into a serial digital signal, which is then sent to the receivers. For example, when a UART is used, the incoming data is converted into a serial digital signal and then transmitted to the receivers. The digital isolator also provides power line isolation, which prevents noise or external signals from interfering with the signal.

The NJU3712M also features 4-channel full-duplex isolation and two-wire (I2C/SMBus) full-duplex isolation. The full-duplex isolation ensures that no interference from external signals can corrupt the data transmission. The two-wire (I2C/SMbus) full-duplex isolation also ensures that different nodes on a network can communicate without interference. This is useful in industrial automation, healthcare, automotive and other areas, where high-speed, reliable data transmission is required.

Notably, the NJU3712M has EMI/EMC design. The electromagnetic interference (EMI) testing is employed to ensure that the device does not interfere with other devices transmitting in the same frequency. The electromagnetic susceptibility (EMS) testing is employed to ensure that the device does not suffer from external interference. Both tests are necessary for reliable data transmission.

Conclusion

NJU3712M is a highly reliable device for serial data transmission. It features 4-channel digital isolator, ultra-low power RS-485/422 transceiver, and two-wire (I2C/SMbus) fully isolated digital isolator. Thanks to its EMI/EMC design, it is widely used in areas requiring reliable communication interface, such as automotive, industrial, healthcare and others.